Overview
The LMZ14202EXT SIMPLE SWITCHER® power module, produced by Texas Instruments, is a versatile and efficient step-down DC-DC converter. This module is designed to drive loads up to 2 A with exceptional power conversion efficiency, line and load regulation, and output accuracy. It is available in an innovative TO-PMOD (NDW) package with 7 pins, enhancing thermal performance and allowing for both hand and machine soldering. The LMZ14202EXT can accept input voltages between 6 V and 42 V and deliver adjustable output voltages as low as 0.8 V, making it suitable for a wide range of applications, including military and rugged environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Input Voltage | 42 | V |
| Input Voltage Range | 6 to 42 | V |
| Output Voltage Range | 0.8 to 6 | V |
| Maximum Output Current | 2 | A |
| Maximum Total Output Power | 12 | W |
| Efficiency | Up to 90% | % |
| Operating Temperature Range | -55 to 125 | °C |
| Junction Temperature Range | -55 to 125 | °C |
| Package Type | TO-PMOD (NDW) | |
| Number of Pins | 7 |
Key Features
- Integrated Shielded Inductor
- Simple PCB Layout
- Flexible Start-up Sequencing Using External Soft-Start and Precision Enable
- Protection Against Inrush Currents and Faults such as Input UVLO and Output Short Circuit
- Single Exposed Pad and Standard Pinout for Easy Mounting and Manufacturing
- Fast Transient Response for Powering FPGAs and ASICs
- Low Output Voltage Ripple
- Pin-to-Pin Compatible With Family Devices: LMZ14203EXT/2EXT/1EXT, LMZ14203/2/1, LMZ12003/2/1
- Fully Enabled for WEBENCH® Power Designer
- Low Radiated Emissions and High Radiated Immunity
- Passes Vibration Standard MIL-STD-883 Method 2007.2 Condition A JESD22B103B Condition 1 and Drop Standard MIL-STD-883 Method 2002.3 Condition B JESD22–B110 Condition B
Applications
The LMZ14202EXT is suitable for a variety of demanding environments and applications, including:
- Point-of-load conversions from 12-V and 24-V input rails
- Time-critical projects requiring high reliability and efficiency
- Space-constrained and high-thermal requirement applications
- Powering FPGAs and ASICs due to its fast transient response
- Negative output voltage applications
- Military and rugged applications due to its compliance with MIL-STD-883 standards
Q & A
- What is the maximum input voltage for the LMZ14202EXT?
The maximum input voltage for the LMZ14202EXT is 42 V.
- What is the output voltage range of the LMZ14202EXT?
The output voltage range of the LMZ14202EXT is from 0.8 V to 6 V.
- What is the maximum output current of the LMZ14202EXT?
The maximum output current of the LMZ14202EXT is 2 A.
- What is the efficiency of the LMZ14202EXT?
The efficiency of the LMZ14202EXT is up to 90%.
- What are the key protection features of the LMZ14202EXT?
The LMZ14202EXT includes protection features such as thermal shutdown, input undervoltage lockout, output overvoltage protection, short-circuit protection, and output current limit.
- Is the LMZ14202EXT compatible with other family devices?
Yes, the LMZ14202EXT is pin-to-pin compatible with family devices such as LMZ14203EXT/2EXT/1EXT, LMZ14203/2/1, and LMZ12003/2/1.
- What are the thermal performance characteristics of the LMZ14202EXT?
The LMZ14202EXT has an operating temperature range of -55°C to 125°C and includes thermal shutdown protection to prevent overheating.
- Does the LMZ14202EXT support WEBENCH® Power Designer?
Yes, the LMZ14202EXT is fully enabled for WEBENCH® Power Designer, supporting component selection, electrical and thermal simulations, and more.
- What standards does the LMZ14202EXT comply with for vibration and drop tests?
The LMZ14202EXT complies with vibration standard MIL-STD-883 Method 2007.2 Condition A JESD22B103B Condition 1 and drop standard MIL-STD-883 Method 2002.3 Condition B JESD22–B110 Condition B.
- How does the LMZ14202EXT handle prebiased start-up?
The LMZ14202EXT can properly start up into a prebiased output, which is useful in multiple rail logic applications where current paths may exist between different power rails during the start-up sequence.
